EXHIBIT 99.1

                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

This certification is provided pursuant to Section 906 of the Sarbanes-Oxley Act
of  2002,  18 U.S.C. 1350, and accompanies the quarterly report on Form 10-Q for
the  quarter  ended  June  30,  2002  (the "Form 10-Q") of P.A.M. Transportation
Services,  Inc.  (the  "Issuer").

I,  Robert  W.  Weaver,  President  and  Chief  Executive Officer of the Issuer,
certify  that:

(i)     The  Form  10-Q fully complies with the requirements of Section 13(a) or
Section  15(d)  of  the  Securities  Exchange  Act  of 1934 (15 U.S.C. 78m(a) or
78o(d);  and

(ii)     The  information  contained  in  the  Form 10-Q fairly presents, in all
material  respects,  the  financial  condition  and results of operations of the
Issuer.



Dated:   August 7, 2002            By: /s/ Robert  W.  Weaver
                                   -----------------------------------------
                                   Robert W. Weaver
                                   President and Chief Executive Officer
                                   (principal executive officer)